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Finding the Fourth Proportional to 226,879.37, 340,239.72 and 66,912.87

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Solution

The fourth proportional to 226,879.37, 340,239.72 and 66,912.87 is: 100,345.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,879.37 : 340,239.72 = 66,912.87 : x
  2. Step 2: Convert to fraction form
    226,879.37/340,239.72 = 66,912.87/x
  3. Step 3: Cross multiply
    226,879.37x = 340,239.72 × 66,912.87
  4. Step 4: Simplify right side
    226,879.37x = 22,766,415,818.63
  5. Step 5: Solve for x
    x = 22,766,415,818.63/226,879.37
  6. Step 6: Final answer
    x = 100,345.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.